EP 2061244 B1 20140423 - Protection of broadcast content with key distribution using telecommunications network
Title (en)
Protection of broadcast content with key distribution using telecommunications network
Title (de)
Schutz von Rundfunkinhalten mit Schlüsselverteilung über ein Telekommunikationsnetzwerk
Title (fr)
Protection de contenu de diffusion avec distribution de clés à travers un réseau de telecommunication
Publication
Application
Priority
GB 0718826 A 20070927
Abstract (en)
[origin: EP2061244A1] A method is disclosed for controlling use, by a user terminal 1 registered with a telecommunications network 3, of content broadcast by broadcasting means 7 and encrypted by a first key TEK. The first key TEK, encrypted by a second key SEK_pub, is provided to the broadcast platform 7 for broadcast to the terminal 1 with the encrypted content. A key SEK_priv corresponding to the second key SEK_pub is selectively provided to the user terminal 1 by point to point communication between the telecommunications network 3 and the user terminal 1. This second key SEK_pub and the corresponding key SEK_priv are different but related keys, and the corresponding key SEK_priv enables decryption of the content. In the embodiment the second key and the corresponding key are the public key and private key, respectively, of a public/private key pair.
IPC 8 full level
H04L 29/06 (2006.01); H04N 7/167 (2011.01); H04N 21/266 (2011.01); H04N 21/418 (2011.01); H04N 21/6334 (2011.01); H04N 21/643 (2011.01)
CPC (source: EP GB)
H04L 9/08 (2013.01 - GB); H04L 63/061 (2013.01 - EP); H04L 63/062 (2013.01 - GB); H04L 63/18 (2013.01 - EP GB); H04N 7/1675 (2013.01 - EP GB); H04N 21/26606 (2013.01 - EP); H04N 21/4181 (2013.01 - EP); H04N 21/63345 (2013.01 - EP); H04N 21/64315 (2013.01 - EP); H04L 63/045 (2013.01 - EP); H04L 2463/062 (2013.01 - EP)
Citation (examination)
"Pretty Good Privacy", 22 September 2007 (2007-09-22), Retrieved from the Internet <URL:http://en.wikipedia.org/w/index.php?title=Pretty_Good_Privacy&oldid=159596260> [retrieved on 20120131]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 2061244 A1 20090520; EP 2061244 B1 20140423; ES 2479115 T3 20140723; GB 0718826 D0 20071107; GB 2453924 A 20090429
DOCDB simple family (application)
EP 08164940 A 20080923; ES 08164940 T 20080923; GB 0718826 A 20070927